# \[REVIEW\]\[PATCH 6/9\] signal/powerpc: Call force\_sig\_fault from \_exception

- From: Eric W. Biederman \<hidden\>
- Date: 2018-09-18 17:59:48 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2018/09/5384350
- Thread: https://ratatoskr.run/linux-arch/2018/09/5384332/t.md

```text
The callers of _exception don't need the pkey exception logic because
they are not processing a pkey exception.  So just call exception_common
directly and then call force_sig_fault to generate the appropriate siginfo
and deliver the appropriate signal.

Signed-off-by: "Eric W. Biederman" <redacted>
---
 arch/powerpc/kernel/traps.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f6c778b5144f..c38bec51dd84 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -380,7 +380,10 @@ void _exception_pkey(int signr, struct pt_regs *regs, int code, unsigned long ad
 
 void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
 {
-	_exception_pkey(signr, regs, code, addr, 0);
+	if (!exception_common(signr, regs, code, addr))
+		return;
+
+	force_sig_fault(signr, code, (void __user *)addr, current);
 }
 
 void system_reset_exception(struct pt_regs *regs)
-- 
2.17.1
```